3(m+1)-m=9

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Solution for 3(m+1)-m=9 equation: 



3(m+1)-m=9

We move all terms to the left:

3(m+1)-m-(9)=0

We add all the numbers together, and all the variables

-1m+3(m+1)-9=0

We multiply parentheses

-1m+3m+3-9=0

We add all the numbers together, and all the variables

2m-6=0

We move all terms containing m to the left, all other terms to the right

2m=6

m=6/2

m=3

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